Trijicon 700600 RMR 1x 3.25 MOA Red Dot Black CR2032 Lithium (1)

Trijicon's RMR (Ruggedized Miniature Reflex) is developed to improve precision and accuracy with any style or caliber of weapon. Housed in rugged forged aluminum, the RMR is extremely tough yet lightweight. The easy-to-use adjusters with audible clicks allow for quick windage and elevation adjustments.
The RMR Type 2 is designed to be as durable as the legendary ACOG. and is tougher than any alternative and suitable for military, law enforcement and hunting applications.
This RM01 model is an LED sight powered by a standard CR2032 battery. It has a red 3.25 MOA dot reticle.